Table 1.
Variance analysis.
| Parameters | C | T | C × T |
|---|---|---|---|
| SPAD | 13.20* | 15.38** | 1.59 ns |
| Plant height | 61.01** | 3.48 ns | 4.98* |
| Leaf area | 6016.99** | 6.84** | 1.18 ns |
| Root fresh weight | 67.84** | 5.63* | 8.72** |
| Stem and sheath fresh weight | 125.15** | 10.33** | 5.24* |
| Leaf fresh weight | 177.12** | 16.73** | 2.43 ns |
| Leaf fresh weight per area | 1.17 ns | 2.41 ns | 0.46 ns |
| Total fresh weight | 186.85** | 14.04** | 6.09** |
| Root dry weight | 147.43** | 1.18 ns | 1.92 ns |
| Stem and sheath dry weight | 149.36** | 7.30** | 3.28 ns |
| Leaf dry weight | 136.12** | 7.38** | 4.76* |
| Leaf dry weight per area | 0.60 ns | 0.06 ns | 1.00 ns |
| Total dry weight | 284.32** | 5.14* | 4.12* |
| Root-shoot ratio | 0.73 ns | 26.36** | 3.88* |
| SOD activity in Root | 40.13** | 0.83 ns | 2.52 ns |
| SOD activity in stem | 545.81** | 13.78** | 5.34* |
| SOD activity in leaf | 669.70** | 99.91** | 168.81** |
| POD activity in Root | 15.52* | 5.71* | 11.38** |
| POD activity in stem | 219.85** | 102.67** | 43.60** |
| POD activity in leaf | 1585.05** | 479.25** | 1376.59** |
| CAT activity in Root | 7.11 ns | 23.84** | 6.61* |
| CAT activity in stem | 4.15 ns | 5.42* | 30.29** |
| CAT activity in leaf | 185.42** | 446.75** | 519.85** |
| MDA content in Root | 26.88* | 22.19** | 25.03** |
| MDA content in stem | 71.48** | 2.51 ns | 2.28 ns |
| MDA content in leaf | 19.04* | 101.52** | 19.74** |
| Proline content in Root | 0.02 ns | 5.22* | 3.82 ns |
| Proline content in stem | 9.22 ns | 26.00** | 14.04** |
| Proline content in leaf | 94.77** | 9.28** | 6.46* |
| Intercellular CO2 concentration | 12.88 ns | 1.11 ns | 0.35 ns |
| Stomatal conduction | 28.43* | 10.25** | 0.14 ns |
| Photosynthetic rate | 9.26 ns | 8.12* | 1.19 ns |
| Transpiration rate | 12.26 ns | 6.44* | 0.98 ns |
C represents the cultivar; T represents the temperature treatment; C × T represents the interaction between cultivars and treatments. *Significant at p < 0.05 according to LSD tests; **Significant at p < 0.01 according to LSD tests; ns represents not significant according to LSD tests.